*{
    margin: 0;
    padding: 0;
}
.warrper{
    width: 500px;
    background: #aaaaaa;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
}
.list{
  width: 10%;
  height: 50px;
  /* background: #f10; */
  background-size: 100% 100%;
 
}